US5156077A - Saw for heavy steel workpieces - Google Patents

Saw for heavy steel workpieces Download PDF

Info

Publication number
US5156077A
US5156077A US07/760,531 US76053191A US5156077A US 5156077 A US5156077 A US 5156077A US 76053191 A US76053191 A US 76053191A US 5156077 A US5156077 A US 5156077A
Authority
US
United States
Prior art keywords
workpiece
frame
blade
upstream
downstream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/760,531
Inventor
Bernd Stursberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to PEDDINGHAUS, ROLF reassignment PEDDINGHAUS, ROLF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: STURSBERG, BERND
Application granted granted Critical
Publication of US5156077A publication Critical patent/US5156077A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/008—Accessories specially designed for sawing machines or sawing devices comprising computers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
    • B23D47/042—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work for conveying work to, or discharging work from, the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4458—Work-sensing means to control work-moving or work-stopping means
    • Y10T83/446—With means to initiate tool feed by same control impulse
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4645—With means to clamp work during dwell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/54—Actuation of tool controlled by work-driven means to measure work length
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work

Definitions

  • the present invention relates to a saw. More particularly this invention concerns a saw used to longitudinally subdivide a heavy steel workpiece.
  • a sawing apparatus for a massive steel casting or beam typically has a saw blade rotatable about a horizontal axis and displaceable transversely of the axis and a conveyor that displaces an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade.
  • the conveyor has a drive roller and holder rollers grip the workpiece upstream of the blade and feed it controlledly to and past the blade and may have a second such pair of rollers downstream of the blade to pull off the piece cut from the workpiece.
  • an abutment block and a pusher block can be brought longitudinally together upstream of the blade to grip the workpiece and hold it in place during cutting.
  • one or more measuring rollers engage the workpiece immediately adjacent the drive and holder rollers upstream of the saw blade.
  • One of these measuring rollers is provided with a rotation sensor that generates an output corresponding to the length of the workpiece that has moved past in contact with the measuring roller. This allows the machine to operate fairly automatically to cut measured pieces off the workpiece.
  • Another object is the provision of such an improved saw apparatus which overcomes the above-given disadvantages, that is which is relatively compact, which cuts very accurately, and which wastes virtually nothing of the workpiece.
  • a sawing apparatus has a frame, a saw blade rotatable on the frame about a horizontal axis and displaceable transversely of the axis, and a conveyor for displacing an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade.
  • the conveyor has upstream and downstream drive rollers flanking the blade and mounted on the frame on one side of the workpiece and respective upstream and downstream holding rollers mounted on the frame transversely juxtaposed with the drive rollers and engaging the opposite longitudinal side of the workpiece.
  • Upstream and downstream abutment blocks on the frame engageable with the one side of the workpiece immediately flank the blade and upstream and downstream pusher blocks on the frame engage the opposite longitudinal side of the workpiece transversely opposite the respective abutment blocks.
  • Upstream and downstream measuring rollers on the frame transversely engage the workpiece immediately upstream and downstream from the blade and are associated with respective sensors that detect how much of the workpiece has passed the respective measuring rollers in contact therewith.
  • Respective upstream and downstream biasing units on the frame urge the measuring rollers independently of each other transversely against the workpiece.
  • the workpiece always stays in contact with at least one measuring roller, ensuring that no mismeasurements are possible.
  • the waste will be reduced because of the short spacing between the measuring rollers and the blade. In fact an end piece can be cut into slices.
  • one of the holding rollers is provided with the respective sensor means and also acts as the respective measuring roller.
  • the frame includes a common slide on which are mounted the measuring rollers and the respective biasing unit and the frame is provided with means for urging the entire slide with the measuring rollers and their biasing unit transversely toward the workpiece.
  • This slide can also carry the abutment and holding blocks and their independently operable actuators.
  • the saw-blade axis is substantially parallel to the transport direction so that the saw blade cuts through the workpiece at 90°.
  • the frame has a transverse dimension of 50 cm to 60 cm
  • the drive rollers have a diameter of 10 cm to 12.5 cm
  • the holding rollers have diameters at most equal to the diameters of the respective drive rollers.
  • the drive rollers longitudinally symmetrically flank the blade and are longitudinally spaced by a distance equal generally to their diameter.
  • the blocks are steel plates that longitudinally equidistantly flank the blade and that lie in planes parallel to that of the blade.
  • FIG. 1 is a mainly schematic top view of a sawing apparatus according to the invention
  • FIG. 2 is a view like FIG. 1 but in more structural detail;
  • FIG. 3 is a section taken along line III--III of FIG. 2.
  • a workpiece 1 here a heavy steel beam, is longitudinally subdivided by a saw 2 having a circular blade 3 rotated about a horizontal axis parallel to the longitudinal direction of the workpiece 1.
  • a conveyor 6 displaces the workpiece 1 longitudinally in a transport direction D and basically comprises upstream and downstream drive rollers 7a and 7b immediately flanking the blade 3 and driven synchronously by a motor 17 and upstream and downstream idling holder rollers 8a and 8b that push the workpiece 1 transversely into solid contact with the drive rollers 7a and 7b.
  • holder rollers 8a and 8b are carried on independent hydraulic pusher cylinders 14a and 14b themselves carried on a common transversely displaceable slide 12 itself movable by a single hydraulic ram 13 on a frame 10 on which all the parts of the apparatus are mounted.
  • the frame 10 is about 55 cm wide and the rollers 7a and 7b are 11 cm in diameter.
  • the roller 9a is in fact constituted by the roller 8a and is provided with a rotation sensor 11a
  • the roller 9b is a separate large-diameter roller slightly downstream of the roller 8b and provided with its own rotation sensor 11b.
  • a controller 18 is connected to the sensors 11a and 11b and to the actuators 13, 14a, 14b, 16a, and 16b.
  • the blade 3 is flanked by a pair of abutment blocks or plates 4a and 4b that can be pushed against the respective longitudinal edge of the workpiece 1 by respective actuators 16a and 16b.
  • abutment blocks or plates 4a and 4b that can be pushed against the respective longitudinal edge of the workpiece 1 by respective actuators 16a and 16b.
  • pusher blocks 5a and 5b that are operated by respective actuators 15a and 15b carried on the slide 12 and operated, like the actuators 16a and 16b, by the controller 18.
  • the controller 18 operates the motor 17 while pressing the rollers 8a through 9b against the far side of the workpiece so that the amount of workpiece displaced past the saw 3 is exactly measured in two locations by the sensors 11a and 11b.

Abstract

A sawing apparatus has a frame, a saw blade rotatable on the frame about a horizontal axis and displaceable transversely of the axis, and a conveyor for displacing an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade. The conveyor has upstream and downstream drive rollers flanking the blade mounted on the frame on one side of the workpiece and respective upstream and downstream holding rollers mounted on the frame transversely juxtaposed with the drive rollers and engaging the opposite longitudinal side of the workpiece. Upstream and downstream abutment blocks on the frame engageable with the one side of the workpiece immediately flank the blade and upstream and downstream pusher blocks on the frame engage the opposite longitudinal side of the workpiece transversely opposite the respective abutment blocks. Upstream and downstream measuring rollers on the frame transversely engage the workpiece immediately upstream and downstream from the blade and are associated with respective sensors that detect how much of the workpiece has passed the respective measuring rollers in contact therewith. Respective upstream and downstream biasing units on the frame urge the measuring rollers independently of each other transversely against the workpiece.

Description

FIELD OF THE INVENTION
The present invention relates to a saw. More particularly this invention concerns a saw used to longitudinally subdivide a heavy steel workpiece.
BACKGROUND OF THE INVENTION
A sawing apparatus for a massive steel casting or beam typically has a saw blade rotatable about a horizontal axis and displaceable transversely of the axis and a conveyor that displaces an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade. The conveyor has a drive roller and holder rollers grip the workpiece upstream of the blade and feed it controlledly to and past the blade and may have a second such pair of rollers downstream of the blade to pull off the piece cut from the workpiece. Similarly an abutment block and a pusher block can be brought longitudinally together upstream of the blade to grip the workpiece and hold it in place during cutting.
In order to determine how much is being cut off the workpiece, one or more measuring rollers engage the workpiece immediately adjacent the drive and holder rollers upstream of the saw blade. One of these measuring rollers is provided with a rotation sensor that generates an output corresponding to the length of the workpiece that has moved past in contact with the measuring roller. This allows the machine to operate fairly automatically to cut measured pieces off the workpiece.
The disadvantage of this system is that long pieces must be discarded which have lengths that at least correspond to the distance between the upstream drive roll and the saw blade. In addition the assembly comprising the drive roller and holder roller is normally attached upstream of the blade on the frame carrying the blade, so that it is quite some distance from this blade. This increases the amount of waste and also the overall bulkiness of the apparatus. The size of the apparatus is increased yet further when it is used for angled cuts, not simply right-angle ones.
OBJECTS OF THE INVENTION
It is therefore an object of the present invention to provide an improved saw apparatus.
Another object is the provision of such an improved saw apparatus which overcomes the above-given disadvantages, that is which is relatively compact, which cuts very accurately, and which wastes virtually nothing of the workpiece.
SUMMARY OF THE INVENTION
A sawing apparatus according to this invention has a frame, a saw blade rotatable on the frame about a horizontal axis and displaceable transversely of the axis, and a conveyor for displacing an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade. The conveyor has upstream and downstream drive rollers flanking the blade and mounted on the frame on one side of the workpiece and respective upstream and downstream holding rollers mounted on the frame transversely juxtaposed with the drive rollers and engaging the opposite longitudinal side of the workpiece. Upstream and downstream abutment blocks on the frame engageable with the one side of the workpiece immediately flank the blade and upstream and downstream pusher blocks on the frame engage the opposite longitudinal side of the workpiece transversely opposite the respective abutment blocks. Upstream and downstream measuring rollers on the frame transversely engage the workpiece immediately upstream and downstream from the blade and are associated with respective sensors that detect how much of the workpiece has passed the respective measuring rollers in contact therewith. Respective upstream and downstream biasing units on the frame urge the measuring rollers independently of each other transversely against the workpiece.
Thus the workpiece always stays in contact with at least one measuring roller, ensuring that no mismeasurements are possible. In addition the waste will be reduced because of the short spacing between the measuring rollers and the blade. In fact an end piece can be cut into slices.
According to features of this invention one of the holding rollers is provided with the respective sensor means and also acts as the respective measuring roller. In addition the frame includes a common slide on which are mounted the measuring rollers and the respective biasing unit and the frame is provided with means for urging the entire slide with the measuring rollers and their biasing unit transversely toward the workpiece. This slide can also carry the abutment and holding blocks and their independently operable actuators.
In accordance with this invention the saw-blade axis is substantially parallel to the transport direction so that the saw blade cuts through the workpiece at 90°. Furthermore the frame has a transverse dimension of 50 cm to 60 cm, the drive rollers have a diameter of 10 cm to 12.5 cm, and the holding rollers have diameters at most equal to the diameters of the respective drive rollers. The drive rollers longitudinally symmetrically flank the blade and are longitudinally spaced by a distance equal generally to their diameter. The blocks are steel plates that longitudinally equidistantly flank the blade and that lie in planes parallel to that of the blade.
BRIEF DESCRIPTION OF THE DRAWING
The above and other objects, features, and advantages will become more readily apparent from the following, reference being made to the accompanying drawing in which:
FIG. 1 is a mainly schematic top view of a sawing apparatus according to the invention;
FIG. 2 is a view like FIG. 1 but in more structural detail; and
FIG. 3 is a section taken along line III--III of FIG. 2.
DESCRIPTION
As seen in FIGS. 1 through 3 a workpiece 1, here a heavy steel beam, is longitudinally subdivided by a saw 2 having a circular blade 3 rotated about a horizontal axis parallel to the longitudinal direction of the workpiece 1. A conveyor 6 displaces the workpiece 1 longitudinally in a transport direction D and basically comprises upstream and downstream drive rollers 7a and 7b immediately flanking the blade 3 and driven synchronously by a motor 17 and upstream and downstream idling holder rollers 8a and 8b that push the workpiece 1 transversely into solid contact with the drive rollers 7a and 7b. These holder rollers 8a and 8b are carried on independent hydraulic pusher cylinders 14a and 14b themselves carried on a common transversely displaceable slide 12 itself movable by a single hydraulic ram 13 on a frame 10 on which all the parts of the apparatus are mounted. The frame 10 is about 55 cm wide and the rollers 7a and 7b are 11 cm in diameter.
To both sides of the actual cutting location defined by the blade 3 is a position-detecting roller 9a and 9b. The roller 9a is in fact constituted by the roller 8a and is provided with a rotation sensor 11a, and the roller 9b is a separate large-diameter roller slightly downstream of the roller 8b and provided with its own rotation sensor 11b. A controller 18 is connected to the sensors 11a and 11b and to the actuators 13, 14a, 14b, 16a, and 16b.
In addition the blade 3 is flanked by a pair of abutment blocks or plates 4a and 4b that can be pushed against the respective longitudinal edge of the workpiece 1 by respective actuators 16a and 16b. Directly across the workpiece 1 from the abutment blocks 4a and 4b are pusher blocks 5a and 5b that are operated by respective actuators 15a and 15b carried on the slide 12 and operated, like the actuators 16a and 16b, by the controller 18.
Thus with the system of this invention the controller 18 operates the motor 17 while pressing the rollers 8a through 9b against the far side of the workpiece so that the amount of workpiece displaced past the saw 3 is exactly measured in two locations by the sensors 11a and 11b. Once the desired amount of the workpiece 1 has been displaced past the blade 3, the blocks 4a through 5b are advanced to clamp it tightly in place, and then the blade 3 is advance horizontally in its own plane so as to cut off its downstream end.

Claims (7)

I claim:
1. A sawing apparatus comprising:
a frame;
a saw blade rotatable on the frame about a horizontal axis and displaceable transversely of the axis;
conveyor means for displacing an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade and including
upstream and downstream drive rollers flanking the blade mounted on the frame on one side of the workpiece and
respective upstream and downstream holding rollers mounted on the frame transversely juxtaposed with the drive rollers and engaging a longitudinal side opposite the one longitudinal side of the workpiece;
upstream and downstream abutment blocks on the frame engageable with the one side of the workpiece and immediately flanking the blade;
upstream and downstream pusher blocks on the frame engageable with the opposite longitudinal side of the workpiece transversely opposite the respective abutment blocks;
upstream and downstream measuring rollers on the frame transversely engaging the workpiece immediately upstream and downstream from the blade;
respective sensor means associated with the measuring rollers for detecting how much of the workpiece has passed the respective measuring rollers in contact therewith; and
respective upstream and downstream biasing means on the frame for urging the measuring rollers independently of each other transversely against the workpiece, the frame including a common slide on which is mounted at least one of the holder rollers and one of the measuring rollers and the respective biasing means, the frame being provided with means for urging the entire slide with the one measuring roller and its biasing means transversely toward the workpiece.
2. The sawing apparatus defined in claim 1 wherein one of the holding rollers is provided with the respective sensor means and also acts as the respective measuring roller.
3. The sawing apparatus defined in claim 1 wherein the frame has a transverse dimension of 50 cm to 60 cm, the drive rollers have a diameter of 10 cm to 12.5 cm, and the holding rollers have diameters at most equal to the diameters of the respective drive rollers, the drive rollers longitudinally symmetrically flanking the blade and being longitudinally spaced by a distance equal generally to their diameter.
4. The sawing apparatus defined in claim 1 wherein the saw-blade axis is substantially parallel to the transport direction, whereby the saw blade cuts through the workpiece at 90°.
5. The sawing apparatus defined in claim 1 wherein the blocks are steel plates that longitudinally equidistantly flank the blade and that lie in planes parallel to that of the blade.
6. The sawing apparatus defined in claim 5, further comprising
respective independently operable actuating means for transversely advancing and retracting the blocks.
7. A sawing apparatus comprising:
a frame;
a saw blade rotatable on the frame about a horizontal axis and displaceable transversely of the axis;
conveyor means for displacing an elongated workpiece longitudinally in a transport direction generally parallel to the saw-blade axis past the saw blade and including
upstream and downstream drive rollers flanking the blade mounted on the frame on one side of the workpiece and
respective upstream and downstream holding rollers mounted on the frame transversely juxtaposed with the drive rollers and engaging a longitudinal side opposite the one longitudinal side of the workpiece;
upstream and downstream abutment blocks on the frame engageable with the one side of the workpiece and immediately flanking the blade;
upstream and downstream pusher blocks on the frame engageable with the opposite longitudinal side of the workpiece transversely opposite the respective abutment blocks;
upstream and downstream measuring rollers on the frame transversely engaging the workpiece immediately upstream and downstream from the blade;
respective sensor means associated with the measuring rollers for detecting how much of the workpiece has passed the respective measuring rollers in contact therewith; and
respective upstream and downstream biasing means on the frame for urging the measuring rollers independently of each other transversely against the workpiece, the frame including a common slide on which are mounted one of the measuring rollers, the respective biasing means, the pusher blocks, and the respective actuating means, the frame being provided with means for urging the entire slide with the one measuring roller and the respective biasing means transversely toward the workpiece.
US07/760,531 1990-09-22 1991-09-16 Saw for heavy steel workpieces Expired - Fee Related US5156077A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4030083A DE4030083A1 (en) 1990-09-22 1990-09-22 SAWING SYSTEM FOR STEEL PROFILES, ESPECIALLY FOR HEAVY STEEL PROFILES
DE4030083 1990-09-22

Publications (1)

Publication Number Publication Date
US5156077A true US5156077A (en) 1992-10-20

Family

ID=6414788

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/760,531 Expired - Fee Related US5156077A (en) 1990-09-22 1991-09-16 Saw for heavy steel workpieces

Country Status (4)

Country Link
US (1) US5156077A (en)
DE (1) DE4030083A1 (en)
FR (1) FR2667005B1 (en)
IT (1) IT1251305B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823081A (en) * 1995-06-30 1998-10-20 Tsune Seiki Co., Ltd. Circular saw
US6263773B1 (en) * 1999-09-16 2001-07-24 Mcadoo David L. Engineered wood products cutting method and apparatus
NL1021782C2 (en) * 2002-10-30 2004-05-06 Marinus Machb Beheer B V Plank machining apparatus for e.g. floor planks, comprises saw, finishing device for cut out plank section and plank clamp
US20050034785A1 (en) * 2001-07-25 2005-02-17 Lhr Technologies, Inc. Processor-controlled carving and multi-purpose shaping device
US20080041771A1 (en) * 2006-08-17 2008-02-21 Grecon Dimter Holzoptimierung Sud Gmbh & Co. Kg Device for Sorting Out Waste Parts of Workpieces Processed on Saws, Preferably on Optimizing Cross-Cut Saws, and Method Using Such Devices
US20080240878A1 (en) * 2007-03-28 2008-10-02 Invention To Controlled Automation, Incorporated Drilling apparatus and method
US20090044670A1 (en) * 2007-08-13 2009-02-19 Guangquan Zhang Metal slicing machine
US20090235795A1 (en) * 2008-03-21 2009-09-24 Makita Corporation Table cutting machine
US20150321275A1 (en) * 2014-05-07 2015-11-12 Keuro Besitz Gmbh & Co. Edv-Dienstleistungs Kg Sawing machine for sawing metal workpieces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1028651B1 (en) * 2020-09-30 2022-04-25 Marchand de Fer Delrue sa A METHOD FOR PROFILE STEEL PRODUCTION

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141367A (en) * 1961-07-14 1964-07-21 United States Steel Corp Apparatus for cutting elongated articles to accurate length
US3415149A (en) * 1967-08-25 1968-12-10 Uk G Pi Tjazhpromelektroproekt Device for wasteless cutting of metal
US3707103A (en) * 1970-10-21 1972-12-26 Tishken Products Co Workstock cutting apparatus
US3853028A (en) * 1972-05-24 1974-12-10 L Jagers Mechanical device for cold-sawing steel-profiles, etc. utilizing a vertical displaceable saw blade
US3871258A (en) * 1973-02-07 1975-03-18 Hurn Brothers Eng Ltd Wood working apparatus
US4152959A (en) * 1976-02-05 1979-05-08 Elhaus Friedrich W Hot shearing apparatus
US4342240A (en) * 1979-05-25 1982-08-03 Keuro Maschinenbau Gesellschaft Mit Beschrankter Haftung & Co. Kommanditgesellschaft Method and apparatus for feeding rod-like workpieces to a severing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332890A1 (en) * 1983-09-13 1985-03-28 German 8700 Würzburg Gresser Displaceable stop on sawing machines, in particular crosscut saws with integrated electronic measurement of the displacement path or of the workpiece length and automatic adjustment
US4590779A (en) * 1984-09-18 1986-05-27 Tools For Bending, Inc. Program-controlled frame bending method and apparatus
NL8802615A (en) * 1988-10-24 1990-05-16 Stephanus Fransiscus Trompert TRANSPORT AND POSITIONING DEVICE.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141367A (en) * 1961-07-14 1964-07-21 United States Steel Corp Apparatus for cutting elongated articles to accurate length
US3415149A (en) * 1967-08-25 1968-12-10 Uk G Pi Tjazhpromelektroproekt Device for wasteless cutting of metal
US3707103A (en) * 1970-10-21 1972-12-26 Tishken Products Co Workstock cutting apparatus
US3853028A (en) * 1972-05-24 1974-12-10 L Jagers Mechanical device for cold-sawing steel-profiles, etc. utilizing a vertical displaceable saw blade
US3871258A (en) * 1973-02-07 1975-03-18 Hurn Brothers Eng Ltd Wood working apparatus
US4152959A (en) * 1976-02-05 1979-05-08 Elhaus Friedrich W Hot shearing apparatus
US4342240A (en) * 1979-05-25 1982-08-03 Keuro Maschinenbau Gesellschaft Mit Beschrankter Haftung & Co. Kommanditgesellschaft Method and apparatus for feeding rod-like workpieces to a severing machine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823081A (en) * 1995-06-30 1998-10-20 Tsune Seiki Co., Ltd. Circular saw
US6263773B1 (en) * 1999-09-16 2001-07-24 Mcadoo David L. Engineered wood products cutting method and apparatus
US20050034785A1 (en) * 2001-07-25 2005-02-17 Lhr Technologies, Inc. Processor-controlled carving and multi-purpose shaping device
US7140089B2 (en) * 2001-07-25 2006-11-28 Lhr Technologies, Inc. Processor-controlled carving and multi-purpose shaping device
NL1021782C2 (en) * 2002-10-30 2004-05-06 Marinus Machb Beheer B V Plank machining apparatus for e.g. floor planks, comprises saw, finishing device for cut out plank section and plank clamp
US7896164B2 (en) * 2006-08-17 2011-03-01 GreCon Dimter Holzoptimierung Süd GmbH & Co. KG Device for sorting out waste parts of workpieces processed on saws, preferably on optimizing cross-cut saws, and method using such devices
US20080041771A1 (en) * 2006-08-17 2008-02-21 Grecon Dimter Holzoptimierung Sud Gmbh & Co. Kg Device for Sorting Out Waste Parts of Workpieces Processed on Saws, Preferably on Optimizing Cross-Cut Saws, and Method Using Such Devices
US20080240878A1 (en) * 2007-03-28 2008-10-02 Invention To Controlled Automation, Incorporated Drilling apparatus and method
US8021086B2 (en) 2007-03-28 2011-09-20 Controlled Automation, Incorporated Drilling apparatus and method
US20090044670A1 (en) * 2007-08-13 2009-02-19 Guangquan Zhang Metal slicing machine
US20090235795A1 (en) * 2008-03-21 2009-09-24 Makita Corporation Table cutting machine
US8161858B2 (en) * 2008-03-21 2012-04-24 Makita Corporation Table cutting machine
US20150321275A1 (en) * 2014-05-07 2015-11-12 Keuro Besitz Gmbh & Co. Edv-Dienstleistungs Kg Sawing machine for sawing metal workpieces
US10576559B2 (en) 2014-05-07 2020-03-03 Keuro Besitz Gmbh & Co. Edv-Dienstleistungs Kg Sawing machine for sawing metal workpieces

Also Published As

Publication number Publication date
IT1251305B (en) 1995-05-08
ITMI912406A0 (en) 1991-09-11
DE4030083A1 (en) 1992-03-26
FR2667005A1 (en) 1992-03-27
FR2667005B1 (en) 1995-11-17
ITMI912406A1 (en) 1992-03-23

Similar Documents

Publication Publication Date Title
US5156077A (en) Saw for heavy steel workpieces
GB2235411A (en) Handling of workpiece stock in rod form on a cold circular saw
GB1418201A (en) Wood working apparatus
GB1479320A (en) Cutting machines
JPH058065A (en) Automatic high speed cutting device for long barlike stock
US20090199929A1 (en) Working Device
GB1447688A (en) Shearing of sheet material
US4872330A (en) Plant for straightening and cutting to length rolled sections or bars
US3295569A (en) Machine for cutting wood with a fixed blade
SU1196168A2 (en) Automatic machine for cutting pipes to measured lengths
CN218488636U (en) Positioning mechanism of wooden door and door pocket cutting equipment
JPH0111388Y2 (en)
KR970000799Y1 (en) Machine for cutting tubes
US3807260A (en) Pipe-cutting machine
US2079180A (en) Pipe cutting machine
JPH0825132A (en) Cutting method and its device
CN218488614U (en) Feeding mechanism of wood door and door pocket cutting equipment
JP3009082B2 (en) Long material feeder
CN218488613U (en) Fine cutting equipment for wooden door and door pocket
JP3504386B2 (en) How to cut short material
CN218575122U (en) Cutting equipment
GB2182280A (en) Improvements in or relating to guide apparatus for cutting tools
RU2000191C1 (en) Profile pieces production line
Stursberg Saw for Heavy Steel Workpieces
JPH08183001A (en) Slice saw

Legal Events

Date Code Title Description
AS Assignment

Owner name: PEDDINGHAUS, ROLF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STURSBERG, BERND;REEL/FRAME:005886/0892

Effective date: 19911014

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19961023

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362